Rion NL-42A, Instruction Manual, Page: 25 / 154

7
Controls and Functions
MENU/ENTER key
Press this key to make or fi nalize the setting of an item in a menu or any
other setting.
When the key is pressed at the measurement screen, the menu list screen
comes up.
CAL key (Calibration key)
This key is used for calibration of the unit and for level calibration of
connected equipment.
keys
These four keys serve for selecting and setting items on menu screens.
LIGHT key
This key turns on the display backlight, for easier reading in a dark lo-
cation. Press the key again to turn the backlight off.
When the automatic light out function was selected from the menu, the
backlight will turn itself off automatically after the preset time.
Also press this key when you want to check the measurement settings in
power-saving standby condition (see page 61).
POWER key
Turns power to the unit on and off. The key must be held down for at least
1 second to take effect.
Key lock
Pressing the and keys together activates the key lock. A lock symbol
appears in the bottom left corner of the display, and the operation keys
except for the LIGHT key are disabled.
If a key other than the LIGHT key is pressed, a key lock indication appears
(see page 41).
Pressing the and keys together once more cancels the key lock.
To turn the unit off, you must fi rst cancel the key lock and then hold down
the POWER key.
The key lock does not function on the menu list screen and calibration
screen.